REED Instruments
Reed R9905 Air Quality Meter
Model R9905
REED R9905 Data Logging Indoor Air Quality Meter: triple LCD display simultaneously monitors carbon dioxide (CO2), temperature and relative humidity; range -4 to 140°F (-20 to 60°C).
From $499.00list price
Pick your exact configuration in the ordering table below to add it to your cart.
Same-day response on quotes. ISO/IEC 17025 accredited calibration available.
Overview
The REED R9905 is a data logging indoor air quality meter from REED Instruments.
Features (REED datasheet)
- Triple LCD display simultaneously monitors carbon dioxide (CO2), temperature and relative humidity.
- Calculates time-weighted average (TWA) and short-term exposure limit (STEL).
- Low-drift NDIR CO2 sensor for stable and accurate readings.
- Temperature and relative humidity measurements help determine thermal comfort.
- Easy-to-read backlit LCD display.
- User adjustable audible alarm.
- Data hold, Max/Min and Average functions.
- Record up to 32,000 datapoints and keep track with internal time and date stamp.
- User selectable sampling rate from 1 to 60 mins.
- Low battery indicator and auto shut-off.
- Includes USB cable, hard carrying case and batteries.
Specifications
| Accuracy | |
| Temperature Accuracy | ±1.5°F (±0.8°C) |
| Humidity Accuracy | 10 to 90% RH: ±3% <10% & >90% RH: ±5% |
| Humidity Accuracy | 0 to 5000ppm: ±(75ppm + 3% rdg.) 5001 to 30,000ppm: ±(150 ppm +5% rdg.) |
| Ranges | |
| Temperature Measuring Range | -4 to 140°F (-20 to 60°C) |
| Temperature Resolution | 0.1°F/°C |
| Humidity Measuring Range | 0 to 100% RH |
| Humidity Resolution | 0.1% RH CO2 (Carbon Dioxide) |
| Sensor Type | Nondispersive Infrared (NDIR) |
| Humidity Measuring Range | 0 to 30,000ppm |
| Humidity Resolution | 1ppm |
| Sampling Rate | 2 seconds |
| Power | |
| Low Battery Indicator | Yes set of 33% and 75% Humidity |
| Power Supply | 9V battery Calibration Standards |
| Battery Life | Approx. 10 hours (continuous use) |
| Environmental | |
| Operating Temperature | 32 to 122°F (0 to 50°C) with |
| Storage Temperature | -4 to 140°F (-20 to 60°C) R9905-PROBE Replacement Temperature & Humidity Probe |
| Operating Humidity Range | 0 to 90% |
| Storage Humidity Range | 10 to 75% |
| Operating Altitude | 6561' (2000m) |
| General | |
| Warm-up Time | 20 seconds |
| Display | LCD |
| Data Hold | Yes Min, Max, Avg Functions: Yes |
| Exposure Limit (STEL) | Yes (15 minutes) |
| Average (TWA) | Yes (8 hours) |
| Datalogging Capabilities | Yes Real-Time Clock and R9905-KIT |
| Date Stamp | Yes Data Logging Indoor Air Quality Meter |
| Internal Memory | Yes (32,000 datapoints) |
| Alarms | Yes (Low and High) |
Documents
Ordering information
2 ordering models available.
| Model | Description | List Price | |
|---|---|---|---|
| R9905-KIT | AIR QUALITY METER W/CALIBRATION HUMIDITY STANDARDS | $625.00 | |
| R9905-NIST | AIR QUALITY METER W/NIST CERT | $929.00 |
Related products
Official compatibility and accessories for this model - not look-alike suggestions.
REED R9933 33% humidity standard for R9905
Official REED: R9905-PROBE replacement probe for R9905 gas detector
REED R9980 humidity standard kit for R9905
REED R9975 75% humidity standard for R9905
REED air quality / humidity meter family
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Reed R9933 33% Humidity Standard For R6001/Sd-3007/8706/R9900/R9905/R6050Sd
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Reed R9905-PROBE Replacement Temperature And Humidity Probe For R9905
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Reed R9975 75% Humidity Standard For R6001/Sd-3007/8706/R9900/R9905/R6050Sd
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